1、安装所需依赖软件
apt install software-properties-common apt-transport-https wget
2、获取GPG key,并添加到可信任列表
wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add -
3、添加Webmin仓库
add-apt-repository "deb [arch=amd64] http://download.webmin.com/download/repository sarge contrib"
4、安装Webmin
apt-get install webmin